Carl Sagan's Cosmos Episode 4 part4

continued from part 3

Category:

Science & Technology

Tags:

• Carl
• Sagan
• Cosmos
• PBS
• TV
• philosophy
• evolution
• science
• history

[Flinchie]

Observation:couldnt see a thing.

Conclusion: Dinosaurs!

[SirNewt]

WHAT?! I was totally planning on posting that same comment when I was putting this video up!

We humans really can be stupid.

[coozno1977]

LoL and you call Sagan arrogant? Delusion is a powerful thing.

[TyrannoFan]

Why are you guys even arguing against @RideMyBMW, he/she is obviously a fucking idiot, and there's no point in arguing.

[RideMyBMW]

@corrosivetrip " your kind will be hunted and slaughtered like the weak little sheep you are sooner or later"

LOL! We ate you fu%$in pagans for lunch 1500 years ago...we did it once,we can certainly do it again. So fu%$ you, ya fu%$ faced luciferian.

[corrosivetrip]

@RideMyBMW your kind will be hunted and slaughtered like the weak little sheep you are sooner or later. pray to your false god it isnt my team that comes across you

[RJL738]

Amazingly it turns out that Saturn's have their own atmosphere. Saturn's rings are alote alrger than first thought and art almsot 99 percent water ice. Saturn actually has a thin large ring around it that is the volume of more than a billion Earth's. It is possible that one of Saturn's moons has a ring system of it's own, this is just one planet. What systems must there be around more stars in the known universe than the grains of sand on all the beaches of ther world.

[MitsosMitsoulas]

"The entire evolution of the Moon is a story of catastrophy."

Just like my sex life :(

[WrestlingHeretic]

You can tell Sagan is having a little fun at Velikovsky's expense.

[kazath]

@RideMyBMW No it shouldn't have impacted. The moon is established to have formed by a proto-planetary collision with Earth during it's infancy. Explained by Ubi below the moon is, and has always moved away from us. So it shouldn't have impacted us, neither will it do so either in it's current form.

[RideMyBMW]

Guys, the moon is 1/3 the size of Earth, the solar system´s biggest moon/planet ratio. The moon should have impacted Earth millions of years ago. BTW, try explaining why the moon is exactly 400 times smaller than the sun, and also 400 times farther away so as to allow for a perfect solar and lunar eclipse...

[UbiquitousChe]

@RideMyBMW

The moon is orbiting in the same direction that the earth spins - but the earth spins faster, so the moon can't keep up.

Because the earth spins faster, this causes the tidal bulge caused by the moon to get dragged forward a little.

This in turn off-sets the center of gravity between the two systems a little, and produces a little tug on the moon - speeding it up.

This moves it /further away/.

On a long timescale, the moon will eventually sling-shot away from the earth.